Meaning of the word sub in English

What does sub mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

sub

US /sʌb/
UK /sʌb/

Noun

1.

a submarine.

Example:
the yachtsman claimed his boat had been sunk by a sub
2.

a subscription.

Verb

act as a substitute for someone.

Example:
he subbed for Scott as weatherman